CN206624113U - Two-way flip one-shot forming paper package box and combination box - Google Patents

Abstract

The utility model relates to the technical field of packaging boxes, which is a two-way reversible one-time forming paper packaging box and combined packaging box; it includes a box body, a left flip cover and a right flip cover; The left side lower end of the box body is hinged and installed with a left flip cover that can be buckled on the left top of the box body; The utility model has a reasonable and compact structure and is easy to use; it can not only solve the problem that the remaining dried fruits cannot be carried, but also can be used repeatedly for storing sundries or fruit peels; air, increase the eating time of dried fruits and ensure the taste; the packaging box is made of paper material, which is easy to degrade and recycle, and is more environmentally friendly compared with plastic packaging bags; one-board molding saves costs and reduces the difficulty and frequency of on-machine debugging processes. Save working hours and improve production efficiency.

Description

Two-way clamshell one-time forming paper packaging box and combination packaging box

technical field

The utility model relates to the technical field of packing boxes, which is a two-way reversible one-time forming paper packing box and combined packing box.

Background technique

Most of the dried fruit products on the market are mainly packed in bags; they range from 100 grams to 1,000 grams; they are ready to eat after opening the bag, and are convenient to eat; The packaging bag cannot be sealed for storage, which leads to the problem of being unable to carry it. Moreover, the dried fruit is exposed to the air for a long time, and it is easy to dry or deteriorate and become moldy, which affects consumption; the bagged dried fruit only contains one kind of dried fruit, and the taste is relatively single; and the packaging bag is made of plastic. Products, which cannot be degraded and recycled, are not environmentally friendly.

Contents of the invention

The utility model provides a two-way reversible one-time forming paper packaging box and combined packaging box, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem that bagged dried fruits cannot be sealed after opening the bag.

The first technical solution of the utility model is achieved by the following measures: a two-way clamshell-type one-time forming paper packaging box, including a box body, a left flip cover and a right flip cover; the box body is a paper box body with an open upper end, and the The left side lower end of the box body is hinged and installed with a left flip cover that can be buckled on the left top of the box body;

The following is a further optimization or/and improvement to the above-mentioned utility model technical solution one:

At least one middle partition can be fixedly installed in the box body, and the middle partition divides the box body into at least two cavities.

The above-mentioned box body, left flip cover and right flip cover can be integrally connected on a die-cutting board; the box body includes outer bottom board, upper outer board, upper inner lining board, inner bottom board, left side board one, right side board one, lower outer side The bottom plate, the lower inner lining plate and the intermediate partition are connected to the bottom plate; the upper outer side plate, the upper inner lining plate and the inner bottom plate are connected to the upper end of the rectangular outer bottom plate in sequence from bottom to top; the left and right sides of the upper inner lining plate are respectively connected with The left side plate 1 and the right side plate 1 are connected with the lower outer side plate, the lower inner lining plate, and the middle partition board in sequence from top to bottom at the lower end of the outer bottom plate; the left and right sides of the lower inner lining board are respectively connected There are two left side panels and two right side panels; the left clamshell includes connecting the left side panel, the top outer buckle panel two, the top inner lining panel two, connecting the upper side panel two and connecting the lower side panel two; connecting the left side panel, the top outer panel The second gusset plate and the second top inner lining plate are connected together from right to left; the right end connecting the left side plate is connected with the left end of the outer bottom plate; the upper and lower sides connecting the left side plate are connected with the upper side plate two and the lower side plate respectively. Side panel two; the right flap includes connecting the right side panel, the top outer gusset one, the top inner lining one, connecting the upper side panel one and connecting the lower side panel one; connecting the right side panel, the top outer gusset one and the top lining Plates 1 are connected together sequentially from right to left, the left end of the right side plate is connected with the right end of the outer bottom plate; the upper and lower sides of the right side plate are respectively connected with the upper side plate 1 and the lower side plate 1.

There is a left connecting plate 1 that can be triangular in shape between the left side plate 1 and the upper outer side plate, and the lower hypotenuse profile of the left connecting plate 1 matches the upper profile of the upper side plate 2; There is a triangular right connecting plate 1 connected between connecting the upper side plate 1, and the lower hypotenuse profile of the right connecting plate 1 matches the upper profile of connecting the upper side plate 1; There is a triangular left connecting plate 2 connected between the two plates, and the upper hypotenuse profile of the left connecting plate 2 matches the lower profile of the connecting lower plate 2; between the right plate 2 and the connecting lower plate 1 A right connecting plate 2 which is triangular in shape is connected, and the upper hypotenuse profile of the right connecting plate 2 matches the lower profile of the connecting lower plate 1.

The upper and lower sides of the top outer buckle plate 2 can be respectively connected with an upper folding plate 1 and a lower folding plate 1. The upper folding plate 1 and the lower folding plate 1 are rectangular, and the upper folding plate 1 is provided with a diagonal angle inclined to the upper left. Folding line, the right end of the upper folding plate one is connected with the left end connecting the upper side plate two, a gap is arranged on the upper right corner of the upper folding plate one, and the contour of the gap of the upper folding plate one matches the contour of the lower left corner of the left side plate one; Folding plate one is provided with a diagonal fold line inclined to the lower left, the right end of the lower folding plate one is connected with the left end of the lower side plate two, the lower right corner of the lower folding plate one is provided with a gap, and the contour of the gap of the lower folding plate one is in line with that of the left side. The outline of the upper right corner of the side plate 2 matches; the upper and lower folding plates 2 and 2 are respectively connected to the upper and lower sides of the top outer gusset plate 1, and the upper folding plate 2 and the lower folding plate 2 are respectively rectangular. The second is provided with a diagonal folding line inclined to the upper right, the left end of the upper folding plate 2 is connected with the right end connecting the upper side plate 1, and a gap is provided at the upper left corner of the upper folding plate 2, and the contour of the gap of the upper folding plate 2 is consistent with the The outline of the lower right corner of the right side panel 1 matches; on the lower folding panel 2, there is a diagonal fold line inclined downward to the right; There is a gap, and the contour of the gap of the second lower folding board matches the contour of the upper right corner of the second board on the right side.

The second technical solution of the utility model is achieved through the following measures: a combined packaging box using a two-way clamshell type one-time forming paper packaging box, including a strap and at least two bidirectional clamshells stacked together from bottom to top At least two straps are fixed at the lower end of the box body of the lowermost two-way flip-type one-time molding paper packaging box, and the straps will stack the two-way flip-type one-time molding paper packaging Bundles are held together.

The utility model has a reasonable and compact structure and is easy to use; it can not only solve the problem that the remaining dried fruits cannot be carried, but also can be used repeatedly for storing sundries or fruit peels; air, increase the eating time of dried fruits and ensure the taste; the packaging box is made of paper material, which is easy to degrade and recycle, and is more environmentally friendly compared with plastic packaging bags; one-board molding saves costs and reduces the difficulty and frequency of on-machine debugging processes. Save working hours and improve production efficiency.

Description of drawings

Accompanying drawing 1 is the three-dimensional structure schematic diagram of the utility model embodiment 1.

Accompanying drawing 2 is the three-dimensional structure schematic diagram of embodiment 1 of the present utility model in the open state.

Accompanying drawing 3 is the expanded view of the utility model embodiment 1.

Accompanying drawing 4 is the three-dimensional structure schematic diagram of the utility model embodiment 2.

The codes in the accompanying drawings are: 1 is the box body, 2 is the left flip cover, 3 is the right flip cover, 4 is the middle partition, 5 is the left connecting plate 1, 6 is the right connecting plate 1, 7 is the left connecting plate 2, 8 is right connecting plate 2, 9 is upper folding plate 1, 10 is lower folding plate 1, 11 is upper folding plate 2, 12 is lower folding plate 2, 13 is diagonal folding line, 14 is strap, 101 is outer bottom plate , 102 is the upper outer board, 103 is the upper inner lining board, 104 is the inner bottom board, 105 is the left side board 1, 106 is the right side board 1, 107 is the lower outer board, 108 is the lower inner lining board, 109 is the septum 110 is the second left side plate, 111 is the second right side plate, 201 is the left side plate, 202 is the top outer gusset plate 2, 203 is the top inner lining plate 2, 204 is connected to the upper side plate 2, 205 is Connect the lower side plate two, 301 is to connect the right side plate, 302 is the top outer buckle plate one, 303 is the top inner lining plate one, 304 is to connect the upper side plate one, and 305 is to connect the lower side plate one.

detailed description

The utility model is not limited by the following examples, and the specific implementation manner can be determined according to the technical scheme of the utility model and actual conditions.

In this utility model, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout method of the accompanying drawing 1 of the specification, such as: the positional relationship of upper, lower, left, right, etc. is based on the specification It is determined by the layout direction of accompanying drawing 1.

Below in conjunction with embodiment and accompanying drawing, the utility model is further described:

Embodiment 1: As shown in accompanying drawings 1 and 2, the two-way clamshell type one-time molding paper packaging box includes a box body 1, a left flip cover 2 and a right flip cover 3; the box body 1 is a paper box body with an open upper end, and the box body The left side lower end of body 1 is articulated and rotated and has the left flip cover 2 that can be buckled on box body 1 left top; Among them, the left flip cover 2 and the right flip cover 3 can be flipped open to both sides, or reversed to the middle of the box body 1 and fastened to the upper port of the box body 1 to close the packaging box; this can not only solve the problem that the remaining dried fruits cannot be carried, It can also be recycled many times to hold sundries or fruit peel garbage, etc.; at the same time, it can also avoid drying and deterioration due to the leakage of dried fruit in the air, prolong the edible time limit, and ensure its original taste; the packaging box is made of paper Made of high-quality materials, it is easy to degrade and recycle. Compared with plastic packaging bags, it is more environmentally friendly.

According to actual needs, further optimization or/and improvement can be made to the above-mentioned two-way clamshell one-time forming paper packaging box:

As shown in accompanying drawings 1 and 2, at least one middle partition 4 is fixedly installed in the box body 1, and the middle partition 4 divides the inside of the box body 1 into at least two cavities. In this way, a variety of dried fruits can be adorned in a box body 1, so that the tastes are more varied.

In this utility model, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout method of the accompanying drawing 3 of the specification, such as: the positional relationship of upper, lower, left, right, etc. is based on the specification It is determined by the layout direction of accompanying drawing 3.

As shown in Figure 3, the box body 1, the left flip cover 2 and the right flip cover 3 are integrally connected on a die-cutting board; the box body 1 includes an outer bottom plate 101, an upper outer side plate 102, an upper inner lining plate 103, and an inner bottom plate 104 , left side plate one 105, right side plate one 106, lower outer side plate 107, lower inner liner plate 108 and intermediate partition connecting bottom plate 109; the upper end of the rectangular outer bottom plate 101 is connected with upper outer side plate 102, The upper inner lining plate 103 and the inner bottom plate 104; the left side plate 105 and the right side plate 106 are respectively connected to the left and right sides of the upper inner lining plate 103, and the lower outer side plate is sequentially connected to the lower end of the outer bottom plate 101 from top to bottom 107, the lower lining board 108, the middle partition connect the bottom plate 109 and the middle partition 4; the left and right sides of the lower lining board 108 are respectively connected with a left side board two 110 and a right side board two 111; Side plate 201, top outer gusset plate 2 202, top inner lining plate 2 203, connecting upper side plate 2 204 and lower side plate 2 205; connecting left side plate 201, top outer gusset plate 2 202 and top inner lining plate 2 203 are connected together sequentially from right to left; the right end connecting the left side plate 201 is connected with the left end of the outer bottom plate 101; the upper and lower sides connecting the left side plate 201 are respectively connected with the upper side plate 2 204 and the lower side plate 2 205 The right flip cover 3 includes connecting the right side plate 301, the top outer gusset plate 302, the top inner lining plate 303, connecting the upper side plate 1 304 and connecting the lower side plate 1 305; connecting the right side plate 301, the top outer gusset plate 1 302 and the top inner lining plate 303 are connected together sequentially from right to left, the left end connecting the right side plate 301 is connected with the right end of the outer bottom plate 101; And connect the lower side plate one 305.

The packaging box is made of a die-cut board after cutting and folding; it not only saves costs, but also reduces the difficulty and frequency of debugging on the machine, saves man-hours and improves production efficiency.

As shown in accompanying drawing 3, a triangular left connecting plate 5 is connected between the left side plate one 105 and the upper outer side plate 102, and the lower hypotenuse profile of the left connecting plate one 5 is connected with the upper side plate two 204. The upper profile matches; between the right side plate one 106 and the connecting upper side plate one 304, a triangular right connecting plate one 6 is connected, and the lower hypotenuse profile of the right connecting plate one 6 is connected with the upper side plate one 304 The upper profile of the left connecting plate 2 matches; between the left side plate 2 110 and the connecting lower side plate 205, a triangular left connecting plate 2 7 is connected, and the upper side hypotenuse profile of the left connecting plate 2 7 is connected with the connecting lower side plate 2 The lower profile of 205 matches; between the right side plate two 111 and the connecting lower side plate one 305, a triangular right connecting plate two 8 is connected, and the upper side bevel profile of the right connecting plate two 8 is connected with the connecting lower side plate A 305's underside profile matches.

Among them, the left connecting plate 1 can form a complete board surface between the upper outer plate 102, the left side plate 105 and the connecting upper side plate 2 204, without further cutting and processing; when folding, only need to follow the left connecting plate The oblique incision between the first 5 and the connecting upper side plate 2 204 separates the two, and the left connecting plate 1 5 is folded backward to the rear end of the left side plate 1 105; the right connecting plate 1 6 and the left connecting plate 2 7. The right connecting plate 2 8 is the same as the left connecting plate 1 5, which further simplifies the process.

As shown in accompanying drawing 3, the upper and lower folding plates 9 and 10 are respectively connected to the upper and lower sides of the top outer buckle plate 202. The upper folding plate 9 and the lower folding plate 10 are rectangular. One 9 is provided with a diagonal folding line 13 inclined to the upper left, and the upper folding plate one 9 right end is connected with the left end connecting the upper side plate two 204, and the upper right corner of the upper folding plate one 9 is provided with a breach, and the upper folding plate one 9 The contour of the notch matches the contour of the lower left corner of the left side plate one 105; the lower folded plate one 10 is provided with a diagonal fold line 13 inclined to the lower left, and the right end of the lower folded plate one 10 is connected to the left end of the lower side plate two 205 Connection, the lower right corner of the lower folding board one 10 is provided with a gap, the contour of the gap of the lower folding board one 10 matches the contour of the upper right corner of the left side board two 110; Folding plate two 11 and lower folding plate two 12, upper folding plate two 11 and lower folding plate two 12 are rectangular respectively, and upper folding plate two 11 is provided with a diagonal fold line 13 inclined to the upper right, and upper folding plate two 11 The left end is connected with the right end of the upper side plate one 304, and a gap is provided at the upper left corner of the upper folding plate two 11, and the contour of the gap of the upper folding plate two 11 matches the contour of the lower right corner of the right side plate one 106; Folding plate two 12 is provided with the diagonal folding line 13 that is inclined to the right bottom, and the left end of lower folding plate two 12 is connected with the right end of connection lower side plate one 305, is provided with gap at the lower left corner of lower folding plate two 12, and lower folding plate two The contour of the notch of 12 matches the contour of the upper right corner of the right side plate two 111.

Among them, the upper folding plate one 9 can form a complete board surface between the top outer buckle plate two 202, the upper side plate two 204 and the left side plate one 105, without further cutting and processing; The slit between the folding plate one 9 and the left side plate one 105 separates the two, then the upper folding plate one 9 is folded forward along the diagonal fold line 13 and then stacked on the rear end of the top outer buckle plate two 202. Yes; the lower folding plate 10, the upper folding plate 11, the lower folding plate 2 12 are the same as the upper folding plate 19, which not only simplifies the process, but also facilitates the top outer buckle plate 1 302 of the left flip cover 2 and its two sides respectively. The connection between the upper side plate two 204 and the lower side plate two 205, and the top outer gusset plate one 302 of the right flip cover 3 and the connection between the upper side plate one 304 and the lower side plate one 305 on both sides respectively .

In this utility model, for the convenience of description, the description of the relative positional relationship of each component is described according to the layout method of the accompanying drawing 3 of the specification, such as: the positional relationship of upper, lower, left, right, etc. is based on the specification It is determined by the layout direction of accompanying drawing 3.

Embodiment 2: As shown in Figure 4, a combined packaging box using a two-way clamshell once-molded paper packaging box, including a strap 14 and at least two bidirectional clamshell once-molded paper boxes stacked together from bottom to top Paper packaging box; At least two straps 14 are fixed at the lower end of the box body 1 of the lowermost two-way clamshell one-time molding paper packaging box, and the two-way clamshell one-time molding paper packaging box stacked together by the straps 14 Bundles are held together.

The above technical features constitute the embodiment of the utility model, which has strong adaptability and implementation effect, and non-essential technical features can be increased or decreased according to actual needs to meet the needs of different situations.

The folding manufacturing process of the utility model embodiment 1:

The first step: the inner bottom panel 104 and the upper inner lining panel 103 are folded in half along the lower edge of the upper inner lining panel 103 on the front ends of the upper outer panel 102 and the outer bottom panel 101, and the overlapping upper outer panel 102 and upper inner lining panel 103 are sequentially folded bonded together, the overlapping outer bottom panels 101 and inner bottom panels 104 are glued together;

Second step: fold the upper outer panel 102 and the upper inner lining panel 103 glued together by 90 degrees downward along the upper edge of the outer bottom panel 101; upper edge position;

Step 3: Fold the middle partition 4, the middle partition connecting bottom plate 109, and the lower inner liner 108 in half along the lower end edge of the lower outer side plate 107 and the front ends of the lower outer side plate 107 and the inner bottom plate 104, and then sequentially fold the overlapping The lower outer plate 107 and the lower inner lining plate 108 are glued together, and the middle partition plate connecting bottom plate 109 is glued together with the inner bottom plate 104;

Step 4: Fold the bonded lower outer panel 107 and lower inner lining panel 108 upwards by 90 degrees along the lower edge of the outer bottom panel 101, so that the lower outer panel 107 and the lower inner lining panel 108 are perpendicular to the position of the lower edge of the outer bottom panel 101 ;

Step 5: Fold the middle partition 4 downward by 90 degrees so that 4 is perpendicular to the middle of the inner bottom plate 104;

Step 6: Between the left side plate 105 and the left connecting plate 15, between the right side plate 106 and the right connecting plate 16, between the left connecting plate 2 7 and the left side plate 110 and the right connecting plate 2 8 and the right side plate two 111 are folded in half and bonded;

Step 7: Fold the glued left side plate 105 and left connecting plate 15 downwards by 90 degrees, and the glued left connecting plate 2 7 and left side plate 2 110 fold upwards by 90 degrees, and then fold the left side plate The overlapping area of one 105 and the left side plate two 110 is bonded;

Step 8: Fold the glued right side plate 106 and right connecting plate 1 6 downwards by 90 degrees, and fold the glued right connecting plate 2 8 and right side plate 2 111 upwards by 90 degrees, and then fold the right side plate The overlapping area of one 106 and the right side plate two 111 is bonded to complete the folding production of the box body 1;

Step 9: Fold the top outer gusset plate 1 302 to the left along the right end edge connecting the right side plate 301 for 90 degrees, then fold the upper folded plate 2 11 and the lower folded plate 2 12 backwards along their diagonal fold line 13, and then fold the The upper folding plate 2 11 is stacked downward on the upper side of the top outer gusset 302, and the lower folding plate 2 12 is stacked upward on the lower side of the top outer gusset 302;

Step 10: Fold the top inner lining plate-303 in half along the right end edge of the top outer gusset plate-302 to the left and press the upper folding plate-9 and the lower folding plate-10 on the front end of the top outer gusset plate-302; the top inner lining plate -303, the upper folding plate-9, the lower folding plate-10 and the top outer buckle plate-302 are bonded together to complete the folding production of the right flip cover 3;

Step 11: Fold the top outer gusset 2 202 90 degrees to the right along the left edge of the left side panel 201, then fold the upper folded plate 1 9 and the lower folded plate 1 10 in half along their diagonal fold line 13, and then Stack the upper folding plate 19 downwards on the upper side of the top outer gusset plate 2 202, and fold the lower folding plate 10 upwards on the lower side of the top outer gusset plate 2 202;

Step 12: The top inner lining plate 2 203 is folded in half to the right along the left end edge of the top outer gusset plate 2 202 and the upper folding plate 9 and the folding plate 10 are pressed on 202; the top inner lining plate 2 203 is folded up Board one 9, lower folding board one 10 and top outer gusset two 202 are bonded together; the folding of the left clamshell 2 is completed.

Claims (10)

1. A two-way clamshell type one-time forming paper packaging box is characterized in that it comprises a box body, a left flip cover and a right flip cover; the box body is a paper box body with an open upper end, and is hinged at the lower left side of the box body. The left flip cover that is buckled on the top of the left part of the box body; the left flip cover that can be buckled on the top of the right part of the box body is hinged and rotated at the lower end of the right side of the box body. 2. The two-way clamshell type once-molded paper packaging box according to claim 1, characterized in that at least one middle partition is fixedly installed in the box body, and the middle partition divides the box body into at least two cavities. 3. The two-way clamshell type one-time forming paper packaging box according to claim 2, characterized in that the box body, the left flip cover and the right flip cover are integrally connected on a die-cutting board; the box body includes an outer bottom plate, an upper outer plate, The upper inner lining board, the inner bottom board, the left side board 1, the right side board 1, the lower outer board, the lower inner lining board and the intermediate partition are connected to the bottom board; the upper end of the rectangular outer bottom board is sequentially connected with the upper outer board, The upper inner lining board and the inner bottom board; the left side board 1 and the right side board 1 are respectively connected to the left and right sides of the upper inner lining board, and the lower outer board, the lower inner lining board, The middle partition connects the bottom plate and the middle partition; the left and right sides of the lower lining board are respectively connected with the second left side board and the second right side board; 1. Connect the upper side plate 2 and the lower side plate 2; connect the left side plate, the top outer gusset plate 2 and the top inner lining plate 2 from right to left; connect the right end of the left side plate to the left end of the outer bottom plate; The upper and lower sides of the left side panel are respectively connected with the upper side panel two and the lower side panel two; Connect the lower side plate 1; connect the right side plate, the top outer gusset plate 1 and the top inner lining plate 1 from right to left, and connect the left end of the right side plate to the right end of the outer bottom plate; The two sides are respectively connected with an upper side plate one and a lower side plate one. 4. The two-way clamshell type one-time forming paper packaging box according to claim 3, characterized in that a triangular left connecting plate 1 is connected between the left side plate 1 and the upper outer side plate, and the lower side of the left connecting plate 1 is inclined The side profile matches the upper profile of the connecting upper side plate two; between the right side plate one and the connecting upper side plate one is connected a triangular right connecting plate one, and the lower hypotenuse profile of the right connecting plate one is connected with The upper profile of the upper side plate 1 matches; a triangular left connecting plate 2 is connected between the left side plate 2 and the connecting lower side plate 2, and the upper hypotenuse profile of the left connecting plate 2 matches the connecting lower side plate 2 The lower side profile of the right connecting plate 2 is connected between the right side plate 2 and the connecting lower side plate 1, and the upper hypotenuse profile of the right connecting plate 2 is connected with the lower side profile of the lower side plate 1 match. 5. According to claim 3 or 4, the two-way clamshell type one-time forming paper packaging box is characterized in that the upper and lower sides of the top outer gusset two are respectively connected with the upper folding plate one and the lower folding plate one, the upper folding plate one and the The lower folding plate 1 is rectangular, and the upper folding plate 1 is provided with a diagonal fold line inclined upwards to the left. , the notch profile of the upper folded plate 1 matches the profile of the lower left corner of the left plate 1; the lower folded plate 1 is provided with a diagonal fold line inclined downward to the left, and the right end of the lower folded plate 1 is connected to the left end of the lower side plate 2 connection, the lower right corner of the lower folding board 1 is provided with a gap, and the contour of the gap of the lower folding board 1 matches the contour of the upper right corner of the left side board 2; The lower folding plate 2, the upper folding plate 2 and the lower folding plate 2 are rectangular respectively. On the upper folding plate 2, there is a diagonal fold line inclined to the upper right. The left end of the upper folding plate 2 is connected to the right end of the upper side plate 1. , there is a notch on the upper left corner of the upper folding board 2, and the contour of the gap on the upper folding board 2 matches the contour of the lower right corner of the right board 1; on the lower folding board 2, there is a diagonal fold line inclined to the right and down, and the lower folding board 2 The left end of the folded plate two is connected with the right end of the lower side plate one, and a gap is arranged at the lower left corner of the lower folded plate two, and the contour of the gap of the lower folded plate two matches the contour of the upper right corner of the right plate two. 6. A combined packaging box using the bidirectional flip-type one-time molding paper packaging box according to claim 1, comprising a strap and at least two bidirectional flip-type one-time molding paper packaging stacked together sequentially from bottom to top box; at least two straps are fixed at the lower end of the box body of the lowermost two-way clamshell once-molded paper packaging box, and the straps bind and fix the stacked two-way clamshell once-molded paper packaging boxes together. 7. A combined packaging box using the bidirectional flip-type one-time molding paper packaging box according to claim 2, comprising a strap and at least two bidirectional flip-type one-time molding paper packaging stacked together sequentially from bottom to top box; at least two straps are fixed at the lower end of the box body of the lowermost two-way clamshell once-molded paper packaging box, and the straps bind and fix the stacked two-way clamshell once-molded paper packaging boxes together. 8. A combined packaging box using the bidirectional flip-type one-time molding paper packaging box according to claim 3, comprising a strap and at least two bidirectional flip-type one-time molding paper packaging stacked together sequentially from bottom to top box; at least two straps are fixed at the lower end of the box body of the lowermost two-way clamshell once-molded paper packaging box, and the straps bind and fix the stacked two-way clamshell once-molded paper packaging boxes together. 9. A combined packaging box using the bidirectional flip-type one-time molding paper packaging box according to claim 4, comprising a strap and at least two bidirectional flip-type one-time molding paper packaging stacked together sequentially from bottom to top box; at least two straps are fixed at the lower end of the box body of the lowermost two-way clamshell once-molded paper packaging box, and the straps bind and fix the stacked two-way clamshell once-molded paper packaging boxes together. 10. A combined packaging box using the bidirectional flip-type one-time molding paper packaging box according to claim 5, comprising a strap and at least two bidirectional flip-type one-time molding paper packaging stacked together sequentially from bottom to top box; at least two straps are fixed at the lower end of the box body of the lowermost two-way clamshell once-molded paper packaging box, and the straps bind and fix the stacked two-way clamshell once-molded paper packaging boxes together.